About hepatitis a virus vaccine
Inactivated hepatitis A vaccine
Used for
- Prevents hepatitis A infection
Usual adult dose
Adults 19 years and older: 1 mL intramuscularly, followed by a second dose 6–18 months later.
Usual dose in children
Children 12 months through 18 years: 0.5 mL intramuscularly, followed by a second dose 6–18 months later.
Common side effects
- Injection-site pain, redness, or swelling
- Headache
- Fever
- Tiredness
Important warnings
- Do not give to anyone with a severe allergic reaction to a previous dose or vaccine component.
- Vaccination may be delayed during moderate or severe acute illness.
- It may not protect people already infected or exposed shortly before vaccination.
- People with weakened immune systems may have a reduced response.
Pregnancy
Generally use during pregnancy when hepatitis A protection is needed; clinical data are limited.
Breastfeeding
Can generally be given while breastfeeding; available information has not identified a specific concern.
Interactions
- Immune globulin can reduce the vaccine response; separate administration may be needed.
- Other vaccines may generally be given at the same visit at different injection sites.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.